as long as they leave out Gorilla Grodd it will be great.
There's a lot more to him than running fast.
like what? i really dont know, so excuse my ignorance? what can he do besides run?
(Wally West once became so surprised that he generated a small sonic boom with his voice).

That particular episode of JL/JLU where Lex and Wally switch bodies, also gives a pretty good indication of what The Flash can do besides run for those who might have watched the animated series, but not really follow up on the comics version.
http://en.wikipedia.org/wiki/The_Flash#Powers_and_abilities
All incarnations of the Flash can move, think, and react at superhuman speeds; their body molecules[citation needed] vibrate so fast that the Flash can walk through walls. All possess an aura that prevents air friction from affecting their bodies and clothes while moving.[citation needed]
Barry Allen was believed to be the fastest of all known Flashes, and was known to have traveled faster than the "speed of thought".[citation needed] However, when Barry Allen pushed himself further (while imploding the Anti-Monitor's chief weapon during the Crisis on Infinite Earths) he appeared to waste away as he was converted into pure kinetic energy, traveled back in time, and was revealed to be the very bolt of lightning that gave him his powers. Barry Allen possessed several other abilities that Jay Garrick and Wally West have not always been able to duplicate.[citation needed] He could run on thick snow clouds. Most unusual was Allen's complete control of his molecules, allowing him to vibrate through solid matter and, on one occasion when transformed into a mirror, "melt" himself and reform as a human to defeat his foe, the Mirror Master. His reflexes and ability to vibrate are so entwined he can feel the tip of a bullet touch him, then vibrate so it passes through him.[citation needed]
Wally West has said more than once that Barry Allen was the Flash most experienced with time travel. However, Wally has been shown to have a connection to the Speed Force, an extradimensional energy source, which provides his powers and gives him several other abilities. While all speedsters are powered by the force, West mainlines the power from the force itself and cannot be cut off from the source, unlike the others. Wally has, on several occasions, sped faster than light and been pulled into and exited the Speed Force by his own volition.[citation needed] He can use the Speed Force to create a costume for himself, and can either impart his high velocities to other people and objects already in motion or steal the velocity they possess. Jay Garrick also possesses this ability to some degree; he stole speed from Black Adam in order to defeat the villainous Johnny Sorrow, and he has threatened to steal Bart Allen's (formerly Impulse and Kid Flash, and for a short while the Flash) speed on at least one occasion when he was misbehaving. West can vibrate through objects; in the past, West would cause whatever he vibrated through to explode, but has recently shown an ability to avoid this side effect. Although not nearly as precise as Allen when he used his cosmic treadmill, West has shown to be able to traverse time and dimensions with his own powers, like Allen in Showcase #4 in 1956. However, Wally now accelerates to the point that he is skirting the very edge of the Speed Force dimension, and can traverse along the timestream to specific points as they become visible, much like watching a movie in fast forward or reverse (however, he must have a particular speedster's vibratory signature to search for and lock onto, or be very familiar with the vibration of that time period).
Occasionally, the top speeds of the Flashes are light speed,[citation needed] although Barry Allen and Wally West have been shown to have sped faster than light (as mentioned previously).[citation needed] On several occasions, the Flash has been shown in various races against Superman to determine which one is faster (or as part of a mutual effort to thwart some type of threat); these races, however, often resulted in ties (or indeterminate results). However, in recent races between Wally and Superman, West has been shown to be the faster of the two[8]. As explained in The Secret of Barry Allen, Wally's ability to tap into the speed force allows him to reach greater speeds than Superman. It should, however, be noted that the Silver Age Superman was much faster than the current one.
Speedsters may at times use the ability to speed-read at incredible rates and in doing so, process vast amounts of information. Whatever knowledge they acquire in this manner is usually temporary (Bart Allen seems to be the exception, though in earlier years, Max Mercury believed that Bart's speed learning would not stick).
Flashes and other super-speedsters also have the ability to speak to one another at a highly accelerated rate. This is often done to have private conversations in front of non-fast people (as when Flash speaks to Superman about his ability to serve both the Titans and the JLA in The Titans #2). Speed-talking is also sometimes used for comedic effect where Flash becomes so excited that he begins talking faster and faster until his words become a jumble of noise (Wally West once became so surprised that he generated a small sonic boom with his voice).
wowYeah, that's my problem as well. I suppose you could add Supes to that list too. Once you get to the superpowered fights, that might last you one or two movies. But after that, the audience will be wondering why in the world the fights are long and hard for the hero.I think like most of the justice league he is far TO powerful especially in respect to his villains.
This entire paragraph is both new and puzzling to me.Plus, let's not forget that the Flash Rogues are basically the second most loved villains in DC behind Batman's Rogues. The Flash and his Rogues are like the equivalent of Marvel's Spider-Man and his Rogues.

like what? i really dont know, so excuse my ignorance? what can he do besides run?
If Ghost Rider could make a lot of money, so could Flash.