Red-giant branch hydrogen fusion continues in stars of roughly solar mass until the helium core increases in mass sufficiently that it becomes degenerate. The core then shrinks, heats up, and develops a strong temperature gradient. The hydrogen shell, fusing via the temperature-sensitive CNO cycle, greatly increases its rate of energy production and the stars is considered to be at the foot of the red-giant branch. For a star the same mass as the sun, this takes approximately 2 billion years from the time that hydrogen was exhausted in the core. Subgiants more than about reach the Schönberg–Chandrasekhar limit relatively quickly before the
Red Giant Movies of its distribution projects, "Vinnaithaandi Varuvaayaa", "Madrasapattinam", "Boss Engira Bhaskaran" and "Mynaa" became commercial successes. In the case of "Mynaa", the studio received praise for backing and choosing to purchase a small budget film and helping market it as a bigger film. From the end of 2011, Red Giant Movies has concentrated solely on producing films starring Udhayanidhi Stalin in the lead role. In addition to the films produced by Red Giant Movies since 2008, the following films from other banners were distributed by the company: Red Giant Movies Red Giant Movies is an Indian film production and distribution company