Personal page vs. claiming a page

Hi, I just noticed that the producer of a movie I've been in has created a page for that movie, also adding the actors involved, me included.

I didn't had an IMDB profile until now, I just created one. My question is, what should I do? Should I add a credit for that movie on the profile I just created? How can I "merge the two accounts" or how can I claim the profile which apparently the producer created?

I hope I managed to explain what I'm asking :)

Thanks a million!