Release Dates for Thor.
- Australia: 21 April 2011
- Austria: 27 April 2011
- Belgium: 27 April 2011
- Egypt: 27 April 2011
- France: 27 April 2011
- Iceland: 27 April 2011
- Ireland: 27 April 2011
- Italy: 27 April 2011
- Latvia: 27 April 2011
- Norway: 27 April 2011
- Sweden: 27 April 2011
- Switzerland: 27 April 2011 (French speaking region premier only)
- UK: 27 April 2011
- Argentina: 28 April 2011
- Bolivia: 28 April 2011
- Bosnia and Herzegovina: 28 April 2011
- Chile: 28 April 2011
- Croatia: 28 April 2011
- Czech Republic: 28 April 2011
- Denmark: 28 April 2011
- Georgia: 28 April 2011
- Germany: 28 April 2011
- Greece: 28 April 2011
- Hong Kong: 28 April 2011
- Hungary: 28 April 2011
- Israel: 28 April 2011
- Kazakhstan: 28 April 2011
- Kuwait: 28 April 2011
- Lebanon: 28 April 2011
- Malaysia: 28 April 2011
- Netherlands: 28 April 2011
- New Zealand: 28 April 2011
- Peru: 28 April 2011
- Portugal: 28 April 2011
- Russia: 28 April 2011
- Serbia: 28 April 2011
- Singapore: 28 April 2011
- Slovakia: 28 April 2011
- Slovenia: 28 April 2011
- South Korea: 28 April 2011
- Switzerland: 28 April 2011 (German speaking region premier only)
- Thailand: 28 April 2011
- Ukraine: 28 April 2011
- United Arab Emirates: 28 April 2011
- Uruguay: 28 April 2011
- Brazil: 29 April 2011
- Bulgaria: 29 April 2011
- Colombia: 29 April 2011
- Cyprus: 29 April 2011
- Ecuador: 29 April 2011
- Estonia: 29 April 2011
- India: 29 April 2011
- Mexico: 29 April 2011
- Panama: 29 April 2011
- Philippines: 29 April 2011
- Poland: 29 April 2011
- South Africa: 29 April 2011
- Spain: 29 April 2011
- Switzerland: 29 April 2011 (Italian speaking region premier only)
- Taiwan: 29 April 2011
- Turkey: 29 April 2011
- Venezuela: 29 April 2011
- Vietnam: 29 April 2011
- USA: 2 May 2011 (Hollywood premiere only)
- Finland: 4 May 2011
- Canada: 6 May 2011
- Ghana: 6 May 2011
- Kenya: 6 May 2011
- Lithuania: 6 May 2011
- Nigeria: 6 May 2011
- Romania: 6 May 2011
- USA: 6 May 2011
- China: 8 May 2011
- Armenia: 14 May 2011
- Pakistan: 20 May 2011
- Japan: 2 July 2011
- Bangladesh: 31 August 2011
- Indonesia: 3 November 2011
