soundarya rajnikanth tweeted: "Appa s next confirmed :):):) Thanu uncle and beemji are going to rock this one !!! ". South superstar Rajinikanth has signed on the dotted line for his next film, which is still waiting for a name, to be directed by Pa Ranjith and produced by S Thanu. Two-film-old Ranjith, whose last outing was the critically-acclaimed Tamil thriller Madras.