Films shot in whole or in part at Rock Studios, Clarendon Road, Borehamwood, Hertfordshire, England (one of several studios known as Elstree Studios).

This category covers the period 1928–1939, and includes the period when it was known as Blattner Studios. The other Elstree studios that were also shooting films during this period were

• British International Pictures Studios/Associated British Studios
• Whitehall Studios/J.H. Studios/M.P. Studios
• Imperial Studios.

For other films shot at the Clarendon Road site see:

• Category:Films shot at British National Studios (1939–1958)

For TV programmes shot at the Clarendon Road / Eldon Avenue site see:

• Category:Television shows shot at British National Studios (before 1958)
• Category:Television shows shot at ATV Elstree Studios (1958–1983)
• Category:Television shows shot at BBC Elstree Centre (since 1984)