X-15 is a film that fictionalized the research rocket that set speed records in what decade?
X-15 (film): X-15 is a 1961 dramatic aviation film that presents a fictionalized account of the X-15 research rocket aircraft program, the test pilots who flew the aircraft, and the associated NASA community that supported the program. North American X-15:  The X-15 set speed and altitude records in the 1960s, reaching the edge of outer space and returning with valuable data used in aircraft and spacecraft design.
i don't know