It's safe to presume the story will be more sophisticated than fending off waves of slowly marching alien hordes. Whether or not it's any good is another story. Hollywood still has a poor track record for movie adaptations of games, and nostalgia trips centered on classic titles tend to fare badly. There's also the question of age -- a large chunk of the audience didn't even exist when Taito released Space Invaders in 1978. The simplicity should allow some artistic freedom, though, so we wouldn't rule out a pleasant surprise.