Award winning screenwriter (Little Miss Sunshine, Toy Story 3) Michael Arndt talks about the 5 steps he learned at Pixar to write a good beginning and set your character off
Like everything in writing, this isn’t the only way, but I think it’s worth a page in the mental Big Book of Writing Advice.
You can check out the article, but the video is full of examples from Pixar movies and well worth the watch. While I can’t say I adhere to a formula like this, I can see the benefit. It would be especially helpful when you have a character in mind, but not a clear cut story.