The first Telugu copycat I came across was Homam. I watched that movie and felt it was great until I watched The Departed. I also had good expectations about Action 3D movie. But after watching the first 15 minutes or so, I severely disappointed as I already watched the Hangover.

Later I came to know a lot about such movies. Here I presented a few movies which I came across.

List Of Telugu Movies Copied/Inspired From English Movies:

Maa nana chiranjeevi Pursuit of Happiness.
Aatma balamThe Reincarnation of Peter Proud
Action 3d Hangover
Ahana Pellanta (Allari Naresh) Marrying the Mafia
Amaravathi Silence of the lambs
Andaru Dongale DorikitheExcess Baggage.
Anjali Son-Rise: A Miracle of Love
ANJI Indiana Jones and the Last Crusade
AnthapuramNot Without my Daughter.
Apoorva SahodaruluCorsican Brothers
Arunachalam Brewster's Millions
Bachelors(2000)100 girls
Bhairava dweepamConan the Barbarian (1982)
Bhamane SatyabhamaneMrs. Doubtfire
Bharateeyudu Falling Down
ChandralekhaWhile you were Sleeping.
Chiru Navvutho Life is Beautiful (1997)
ChiruthaSwept Away
CriminalThe Fugitive.
Dookudu (2011) Good bye Lenin
Endukante... PremantaJust Like Heaven
February 14 Necklace Road I Know What you did Last Summer (1997)
Gaayam 2 A History Of Violence.
Game (2006)Changing lanes
Ghajini (2008) Momento (2002)
Hasini Late Autumn (2010)
Hello BrotherTwin Dragons( Jackie Chan).
Hero (2008) Police Academy
Homam (2008)The Departed (2006)
Indrudu ChandruduMoon Over Parador
Indumathi Psycho
Keka Classic
Key (2011)Exam (2009)
Khaidi (1983) Rambo First Blood
KirathakuduEscape from New York( entire 2nd half).
Manavudu-DanavuduFace Off.
Manmadhudu (2002) What a woman wants
Maryada Ramanna Our Hospitality
Mee Shreyobhalashi(2007)Japanese Film Ikinai
MoneyRuthless People.
Mosagallaku Mosagadu The Good the Bad and the Ugly
Mrugaraju Ghost and the Darkness
Nani Big (1988)
Nee manasu naaku telusuOn the Line (2001)
Nenu meeku Telusa Clean Slate (1994)
Neti SiddarthaThe Godfather.
Nirnayam Stakeout
Oka VichitramBowfinger
Oosaravelli Vengeance
Paape Na PraanamNick of Time.
Pilla Zamindar (2011) A Millionaire's First Love
PothurajuThe Life of David Gale (2003)
RaatriThe Exorcist.
Robo Making Mr.Right
SakhiBarefoot in the Park
Sathi LeelavathiShe Devil
Satyabhama (2007)50 First Dates
Satyame shivamPlanes, Trains and Automobiles
Sisindri (1995)Baby's Day out
Siva ShankarThe Road to Perdition.
Stalin (2006) Pay It Forward (2000)
Thenali What about Bob?
Totti GangSaving Silverman.
Veta (1986) The Count of Monte Cristo
Visakha Express (2008)Strangers on a Train