Yes, Sue and Johnny Storm are sister and brother in the upcoming [The Fantastic Four](movie:34667), a cinematic reboot of the franchise premiering in June 2015. And now we know their father.
Reg E. Cathey has been cast as the elder Dr. Storm, and is specifically listed as both a doctor and scientist in the notice. The actor has recently appeared on [House of Cards](series:726551) and Banshee and starred on The Wire. No further information about the character was given in the report. In the Ultimate Universe, Dr. Franklin Storm was the head of a child prodigy think tank, and a multiple PHD scientist, which it sounds like is more likely the character in this film. At the think tank he had a direct hand in mentoring his daughter Susan, herself an accomplished bioengineer at a young age, and eventually recruiting and mentoring Reed Richards and even the future Dr. Doom.