O2 (UK) Telefónica O2 had a long-standing relationship with Arsenal F.C., being their shirt sponsor until the end of the 2005/2006 season. In 2005, a three-year deal was signed that saw Telefónica O2 become the team's exclusive mobile communications partner. O2 were the main sponsor of the Channel 4 reality TV show "Big Brother" from its second series (as BT Cellnet) in 2001 until its fourth series in 2003. They also sponsored the spin-off shows "Celebrity Big Brother 2" in 2002 and "" in 2003. In total O2 sponsored five series of the show. O2 sponsored music festivals, the Wireless Festivals, from
Kerala State Film Development Corporation which its management was handed over to the Kerala State Chalachitra Academy. KSFDC is the founder of the Chithranjali Studio. KSFDC owns a cinema exhibition network of ten theatres across Kerala. KSFDC also works as a production agency which makes public interest documentary films and short films for the Government of Kerala. A digital post processing studio owned by the KSFDC. KSFDC owns an exhibition network of 17 cinemas in Kerala namely: Kerala State Film Development Corporation Kerala State Film Development Corporation (abbreviated as KSFDC), is an organization founded by the Government of Kerala, India for promoting the film market