The trick is to fool the audience. You give The Flash a big hero moment. Have the public applaud. The music swell. Barry, like the comic book fan he is, get into the moment. And, boom!, Captain Boomerang strikes. The spectators scatter in panic. Barry is dazed.
There's your action.
I still Barry would look stupid getting hit by Boomerang, he would look like a moron if he's goofing around to get by something like a boomerang.
But we do need comic relief. Other than Trickster, Boomerang fits that bill in spades.
Or Barry can have some of Wally's sense of humor.
I don't see why we need another villain just for comic relief. There are tons of movies without comic relief villains, so I don't see that he is needed. Batman didn't have a comic relief villain, neither did X-Men.
And, frankly, I find the fact that Boomerang has a strong personality is likely to make it easier to fit him in. What do you do with Heat Wave, other than make him Cold's opponent? The fact that he's a pyro, isn't of much use in character moments.
Again you can tweak him and again I think fire is more cinematic then boomerangs.
There's really no need for Boomerang to be more than a sarcastic Greek chorus in the Rogue scenes and get in on some action when its conventient to the plot. He's along for the ride, not a plot mover and shaker.
That makes he seem kinda pointless, just another character trying to take screen time.
Or you can just use a guy with a strong personality who can get it across easily. Boomerang's perhaps the absolute best rogue in terms of interactions. If colorful personalities is one of your goals for the Rogues, then Boomerang is at the top of the heap. I can very easily picture him as the Mr. Pink of the Rogues.
I personally don't think his personality is so compelling that he has to be in the film. Ultimately I think Mirror Master and Capt Cold should get the lion share of character development, so another strong personality is just a waste of screen time and again I don't his personality is compelling enough make him a necessity.
I mean Capt Boomerang is one of those villains who got killed off and no has bothered
And, if colorful group interactions isn't one of you goals, then why use multiple Rogues at all? Just go with Mirror Master.
That is not a bad idea. There is a difference between having enough interesting villains to have interesting interactions and so many that the villains are uncompelling.
What's the theme? If the theme is "appearances are deceiving" or "think fast" then Boomerang is a better villain than the rather more direct Heat Wave. If "obsessions" is your theme, then Heat Wave is your choice.
Obsessions is cooler theme in my opinion.
Again, I wouldn't put Boomerang in the movie just to set up a Suicide Squad movie, but it would be one of the considerations I made. Or if Russell Crowe said he'd portray Captain Boomerang on a bet.
Why can't Capt Boomerang have his chance to shine in a Suicide Squad movie
while the Flash movie focuses on other rogues? Everyone wins there.
The origin is simple, and the villains, being the Rogues, would undoubtedly have scenes where they interact with each other, thus revealing their personality.
Except if you have too many Rogues they will all be fighting for screen time and be underdeveloped. Too many villains is what ruined Spider-Man 3.
And unless you know nothing about Boomerang, it's easy to make him a badass. He's a guy who's honed his skill in a single weapon to a degree that while the weapon itself isn't up to par with, say, a firearm, in his hands it's not only a formidible weapon, but something that can take on the fastest man alive.
Flash having trouble with Capt Boomerang makes Flash look like a dumb ass instead of making Cap Boomerang looking like a "bad ass". To the audience it would just make the Flash look like an idiot.
Why not just save him for a Suicide Sqaud movie, he would be a more convincing bad ass if he is hitting terrorists with boomerangs instead of the fastest man alive.