I think Shell is a lock to do over 200 to 300mil internationally. Domestically it's hard to tell because overt science fiction is tricky the sell in the states sometimes. Even overt sci fi films with an action bent aren't an easy sell. I won't rule out a 100mil total but I don't think that's guaranteed at all.
Shell will make it's money in Asia. I don't see it appealing here in the US though.