All I can remember is that a young girl finds out, after the death of her mother, that her father is not her "biological father" and she has to go meet her "biological father" because he wants her to come live with him. Her dad don't really have a choice and accept for her to go spent some time with him or he ask her to go... don't really remember !

Please help me I've been looking for this movie for a long time! Thank you

Here's one I can think of:

Custody (2007 TV movie)
IMDb review:
This story starts with a widower (Rob Morrow) raising his young daughter (Kay Panabaker). They have a wonderful relationship full of closeness and caring, only he is keeping a startling secret: He is not her birth father. After abandoning her pregnant mother 13 years ago, her birth father (James Denton) comes into her life and wants sole custody.

Custody (TV Movie 2007) - IMDb

You got it!! Yeaaaaaaaaa! I've been searching for this movie for a long time now. Thank you so much.

Quote:

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Originally Posted by Sarah Ibr

You got it !!!!!! yeaaaaaaaaa! I've been searching for this movie for a long time now. Thank you so much.

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You're welcome! I'm happy that I could solve your movie mystery. Watching Lifetime movies helps me ID a lot of movies=}

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Originally Posted by MystMoonstruck

You're welcome! I'm happy that I could solve your movie mystery. Watching Lifetime movies helps me ID a lot of movies=}

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Cool. Can I ask you about another movie then please ?

It's about a father and his son (about 5 or 6 years old I think) going on a trip. They are after some bad guys and I'm pretty sure that the son was dressed as a cowboy. At the end of the movie we find out that the kid is actually sick (I think cancer) and he is going to die but he doesn't know that. And we also find out that the whole adventure was all planned out by the family to give the kid the best memory.

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Originally Posted by Sarah Ibr

cool. Can I ask you about another movie then please ?

It’s about a father and his son (about 5 or 6 years old I think) going on a trip. They are after some bad guys and I’m pretty sure that the son was dressed as a cowboy. At the end of the movie we find out that the kid is actually sick (I think cancer) and he is going to die but he doesn’t know that. And we also find out that the whole adventure was all planned out by the family to give the kid the best memory.

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That one doesn't sound familiar, but I'll do some thinking about it. Maybe something will come to mind.

OK take your time and thanks a lot