Go see Iron Man

... I don't remember Spider-man 2 all that well, but from what I remember, yes.
 
Downey Jnr is superb in it, and it's well made, filmed and written. It's a very solid piece of cinema, and I think everyone involved had a real feel for the comic book, its characters and ultimately how to portray them in a big budget movie that retained its essential geek-edge. Spiderman 2 was good, but I liked this better.