The trailer of S.S. Rajamouli's magnum opus "Baahubali" was screened in select theatres here on Monday and the response has been phenomenal.

"The trailer was screened at 10:30 a.m. for free to audiences across 300 theatres in Andhra Pradesh and Telangana. An unprecedented number of people flocked to the cinema halls to watch the trailer," a source from the film's unit told IANS.

Balaji M, an ardent fan of Rajamouli, said the trailer was mindblowing.

"The visuals were breathtaking. The trailer was worth the long wait and deserves to be called an epic. It blew me away," Balaji told IANS.

Some theatre owners, according to sources, had to seek police protection to control the crowd.

The trailer will be released for all online later on Monday evening via Youtube.

Directed by Rajamouli, the film narrates the story of two brothers who fight for a kingdom.

The film, which will be released in Tamil as well as Hindi, is slated for release on July 10. It features Rana Daggubati, Prabhas Varma, Anushka Shetty and Tamannaah Bhatia in the lead roles.

Watch trailer here: