Paul Walker presents a creation from Colcci's 2013/2014 summer collection during Sao Paulo Fashion Week March 21, 2013. [Photo/Agencies]

Paul Walker's final appearance in the street-racing franchise "Fast & Furious" left a preview audience teary-eyed at the South by Southwest (SXSW) festival for the first public screening of the last film the actor made before he died in a car crash.

In the film, Vin Diesel's character says "those who are lost go on in the hearts of the living" and that was how it felt for many fans attending the midnight screening on Sunday.

"Furious 7", out in theaters on April 3, is Walker's last appearance as law-enforcement officer Brian O'Connor. The 40-year-old died as a passenger in a one-car crash in Santa Clarita, California, in November 2013.

Before the screening, the film's producer Neal Moritz appealed to viewers not to reveal what becomes of Walker's character in the franchise, which has grossed more than $2 billion globally.

"We honestly lost a dear friend, brother, comrade, while we were making this movie," Moritz said. "When we decided we were going to continue this movie, we were determined to honor his legacy and our love for him."