Since 1999 there have been off and on discussions in Cairo about restoring diplomatic ties with Iran (each government maintains in interest section in one another's country). A major issue remains Iran's penchant for extolling Khalid el-Islambouli, the assassin. The release of a new movie shown on Iran's "al-Alam" TV.
Thus, any talk of restoring ties is once again off.
Sadat film shakes diplomatic relations - The National Newspaper
"Egypt’s ministry of interior said it took the action because the station did not have a broadcasting licence, but it is widely believed that the cause was a documentary about the assassination of Anwar Sadat, Egypt’s late president, that said he was killed for signing a peace agreement with Israel.
"“Issuing such an ugly movie is an outrageous crime, which violates Islamic Sharia [law],” said the Islamic Research Academy, which is affiliated with Al Azhar, the highest Sunni institute based in Cairo, in a statement. “The rift won’t be bridged unless this silly film is burnt.”"