Miami Heat legend Dwyane Wade's documentary premieres this Sunday. The film is called “Dwyane Wade: Life Unexpected.”

Wade’s No. 3 jersey will be officially retired during halftime of the Heat's matchup against the Cleveland Cavaliers on Saturday. The future Hall of Famer spoke to Rohan Nadkarni of Sports Illustrated about why he decided to make and release his documentary.

“Really, Ro, it just came from me understanding that this career goes fast. I wanted to capture these moments,” Wade said. “It was really just a vanity project. I wanted to have moments of my journey to show my kids, show my grandkids. I didn’t have the mentality at the time, ‘Oh, in 10 years I’m going to do a documentary.’”

The feature-length documentary chronicles Wade’s NBA career and life off the court as he goes through his final year in the NBA with the Heat. It will also reflect back on his personal and professional challenges, victories and setbacks throughout his unwavering journey from Robbins, Illinois to becoming one of the best basketball players of all time.

The way Wade ended his NBA career last season was so epic. To recall, Wade recorded a triple-double in his final game against the Brooklyn Nets with his best friends courtside. LeBron James, Chris Paul and Carmelo Anthony made the trip to the Barclays Center to watch Wade play his final game in the NBA with the Heat.

LeBron, Paul and Anthony are all busy with their respective teams this time around, so they won't be in Miami on Saturday or Sunday, but it will still be a great celebration of Wade and the Heat.