That's pretty much how most X-Men adaptations have handled it: introducing the team from the perspective of a newcomer. First Kitty Pryde in the '80s "Pryde of the X-Men" pilot, then Jubilee in the premiere of the '90s series, then Wolverine and Rogue in the movie, then Nightcrawler in the X-Men Evolution
premiere (although half the first season of that show was about new kids joining the team).
Come to think of it, I'm a little surprised that no one in the mass media has ever done a Batman adaptation from the point of view of Dick Grayson. He's orphaned, this mysterious dark knight swoops down to catch the killer and takes Dick under his wing, and through Dick's POV we discover the world of Batman and Bruce Wayne's tragic past. It seems like a natural application of a fairly common storytelling format. (Although Frank Miller did something similar with his All-Star Batman and Robin
, and that's something we'd be better off not talking about.)