Definitely not. 'Inside Man' is a made-up story. The plot and characters were invented to captivate the audience and offer an exciting cinematic experience rather than representing actual happenings.
Yes, 'Inside Man' is based on a true story. The movie takes elements from real - life bank heists and hostage situations. It shows how criminals might plan and execute a complex robbery while also dealing with the police and hostages. However, it also adds fictional elements for the sake of entertainment, like the unique characters and some of the twists in the plot.
In fact, 'Inside Man' isn't based on any true events. It's a work of fiction that showcases the creativity of the people behind it. There's no real-life inspiration for the story.