when should i watch boruto movie

You should watch the Boruto: Naruto the Movie after finishing Naruto Shippuden episode 52. The movie takes place after Naruto becomes Hokage and introduces Boruto, Naruto’s son. It fits in the story timeline after the Shippuden arc and before starting the Boruto: Naruto Next Generations anime series. However, it's worth noting that Boruto: Naruto the Movie has been adapted as episodes 51-66 in the Boruto: Naruto Next Generations anime, which some fans prefer watching instead of the movie itself because of better animation and more detailed story flow. So, the best time to watch the Boruto movie is after completing Naruto Shippuden episode 493 (the series finale) if you want the full context. But if you are watching Boruto anime, you can skip the movie and watch its story in the anime episodes 51-66 instead.