Night At The Museum 3 Tamil Dubbed Isaimini -

Night at the Museum: Secret of the Tomb (4K UHD) - Prime Video

For the best viewing experience with official Tamil audio or subtitles, consider these platforms: Disney+ Hotstar: Night At The Museum 3 Tamil Dubbed Isaimini

If you just want to catch up on the story in your native language, several creators provide detailed "Story in Tamil" breakdowns: Night at the Museum: Secret of the Tomb