Here are the corrections for each sentence:

1. **Incorrect:** The man **which** is talking to you is my uncle.
**Correct:** The man **who** is talking to you is my uncle.

2. **Incorrect:** This is the school **when** I studied five years ago.
**Correct:** This is the school **where** I studied five years ago.

3. **Incorrect:** That is the girl **who** her father is a famous singer.
**Correct:** That is the girl **whose** father is a famous singer.

4. **Incorrect:** The house **where** I was born **in** is very old.
**Correct:** The house **where** I was born **is** very old. (Remove "in.")

5. **Incorrect:** The film **who** I watched last night was boring.
**Correct:** The film **that/which** I watched last night was boring. (Use "that" or "which" instead of "who.")

Here is the final corrected version:

1. The man who is talking to you is my uncle.
2. This is the school where I studied five years ago.
3. That is the girl whose father is a famous singer.
4. The house where I was born is very old.
5. The film that/which I watched last night was boring.