diff --git a/src/common/cutscenes/screenjob.cpp b/src/common/cutscenes/screenjob.cpp
index e82828482..305710eb5 100644
--- a/src/common/cutscenes/screenjob.cpp
+++ b/src/common/cutscenes/screenjob.cpp
@@ -51,10 +51,10 @@
 #include "s_music.h"
 #include "m_argv.h"
 
-static DObject* runner;
-static PClass* runnerclass;
-static PType* runnerclasstype;
-static CompletionFunc completion;
+DObject* runner;
+PClass* runnerclass;
+PType* runnerclasstype;
+CompletionFunc completion;
 static int ticks;
 int intermissiondelay;
 
@@ -83,7 +83,7 @@ void Job_Init()
 //
 //=============================================================================
 
-static VMFunction* LookupFunction(const char* qname, bool validate = true)
+VMFunction* LookupFunction(const char* qname, bool validate)
 {
 	size_t p = strcspn(qname, ".");
 	if (p == 0) I_Error("Call to undefined function %s", qname);
@@ -122,7 +122,7 @@ void CallCreateFunction(const char* qname, DObject* runner)
 //
 //=============================================================================
 
-DObject* CreateRunner(bool clearbefore = true)
+DObject* CreateRunner(bool clearbefore)
 {
 	auto obj = runnerclass->CreateNew();
 	auto func = LookupFunction("ScreenJobRunner.Init", false);
diff --git a/src/common/cutscenes/screenjob.h b/src/common/cutscenes/screenjob.h
index d843d5056..be39bd25f 100644
--- a/src/common/cutscenes/screenjob.h
+++ b/src/common/cutscenes/screenjob.h
@@ -36,8 +36,20 @@ void DeleteScreenJob();
 bool ScreenJobResponder(event_t* ev);
 bool ScreenJobTick();
 void ScreenJobDraw();
+bool ScreenJobValidate();
 
 struct CutsceneDef;
 bool StartCutscene(const char* s, int flags, const CompletionFunc& completion);
+bool StartCutscene(CutsceneDef& cs, int flags, const CompletionFunc& completion_);
+
+VMFunction* LookupFunction(const char* qname, bool validate = true);
+void CallCreateFunction(const char* qname, DObject* runner);
+DObject* CreateRunner(bool clearbefore = true);
+void AddGenericVideo(DObject* runner, const FString& fn, int soundid, int fps);
+
 
 extern int intermissiondelay;
+extern DObject* runner;
+extern PClass* runnerclass;
+extern PType* runnerclasstype;
+extern CompletionFunc completion;